const THRESHOLD: i32 = 10;
static LANG: &'static str = "CHINESE";
static AGE: u8 = 18;

fn is_big(n: i32) -> bool {
    n > THRESHOLD
}

fn main() {
    println!("{}", THRESHOLD);
    println!("{}", AGE);
    println!("{}", LANG);
    println!("this is {}", if is_big(232) { "big" } else { "small" });
    // THRESHOLD=1000;
}
